These entries are queried from radb.net using whois, you can try my project getting these.
:AS135235 route: 103.221.80.0/22 descr: Mastek Infosystems (O) Pvt. Ltd origin: AS135235 mnt-by: MAINT-AS18101 changed: ip.nnoc [at] relianceada.com 20160606 #08:03:51Z source: RADB last-modified: 2023-11-13T15:49:32Z rpki-ov-state: valid route: 103.221.80.0/22 descr: Mastek Infosystems O. Pvt. Ltd. origin: AS135235 mnt-by: MAINT-IN-MASTEK last-modified: 2020-10-13T08:32:53Z source: APNIC rpki-ov-state: valid route: 103.221.80.0/23 descr: Mastek Infosystems O. Pvt. Ltd. origin: AS135235 mnt-by: MAINT-IN-MASTEK last-modified: 2020-10-13T08:33:00Z source: APNIC rpki-ov-state: valid route: 103.221.80.0/24 descr: Mastek Infosystems O. Pvt. Ltd. origin: AS135235 mnt-by: MAINT-IN-MASTEK last-modified: 2020-10-13T08:33:07Z source: APNIC rpki-ov-state: valid route: 103.221.81.0/24 descr: Mastek Infosystems O. Pvt. Ltd. origin: AS135235 mnt-by: MAINT-IN-MASTEK last-modified: 2020-10-13T08:33:14Z source: APNIC rpki-ov-state: valid route: 103.221.82.0/23 descr: Mastek Infosystems O. Pvt. Ltd. origin: AS135235 mnt-by: MAINT-IN-MASTEK last-modified: 2020-10-13T08:33:22Z source: APNIC rpki-ov-state: valid route: 103.221.82.0/24 descr: Mastek Infosystems O. Pvt. Ltd. origin: AS135235 mnt-by: MAINT-IN-MASTEK last-modified: 2020-10-13T08:33:30Z source: APNIC rpki-ov-state: valid route: 103.221.83.0/24 descr: Mastek Infosystems O. Pvt. Ltd. origin: AS135235 mnt-by: MAINT-IN-MASTEK last-modified: 2020-10-13T08:33:37Z source: APNIC rpki-ov-state: valid route6: 2001:df1:d7c0::/48 descr: Mastek Infosystems O. Pvt. Ltd. origin: AS135235 mnt-by: MAINT-IN-MASTEK country: IN last-modified: 2023-02-10T12:15:58Z source: APNIC rpki-ov-state: valid